How to add General comments while Updating the Business Process through API

Dear All,

I have a requirement to move a workflow from one step to the next via API. While performing this action, I need to add the approver’s comment to the General Comments section of Unifier.

I have tried using the payload below, but it is not working. Could you please let me know if you have successfully achieved this scenario and, if so, share the correct payload structure?

Sample Payload

{
"options": {
"project_number": "10001",
"bpname": "Test",
"workflow_details": {
"WFCurrentStepName": "Review",
"WFActionName": "Approve"
},
},
"data": [
{
"record_no": "A-00001",
"_comments": "Approved by API"
}
]
}

Thanks